Desulfurizing copper matte.



No. 668,952. Patented Feb. 26, I901.

. a. c. CARSON.

DESULFURIZIIIG COPPER MATTE.

(Application filed May 4, 1900.)

(No Model.)

NTTT STATES PATENT OFFICE.

GEORGE O. CARSON, OF OASTELLA, CALIFORNIA, ASSIGNOR OF ONE-HALF TO HORACE W. BROOKS, OF KENDON, CALIFORNIA.

DESULFURIZING COPPER MATTE.

SPECIFICATION forming part of Letters Patent No. 668,952, dated February 26, 1901.

Application filed May 4, 1900. Serial N0. 15,534. (No model.)

To all whom it may ooncerrt: the matte tapped and allowed to run into it. Be it known that I, GEORGE O. CARSON, a An operator holding the air-hose drops the citizen of the United States, residing at Oasvertical end into the pot close to the bottom fella, in the conntyofShasta and State of Oaliand so directs the air-current into the confornia, have invented certain new and usetents. The admission of air forms sulfur di- 50 ful Improvements in Desulfurizing Copper oxid, which escapes in fumes from the surface Matte, of which the following is a specificaof the metal, while the agitation enables imtion. purities, such as iron and silica, to rise and My invention relates to the treatment of float upon the surface, from which they can ores, such as those of copper and of lead, in be removed. Thus at one operation the mol- 55 order to obtain a metallic matte and to desulten metal can be desulfurized as it leaves the furize the latter. smelter, successive pots being run under the My object is to shorten the process and ensettler-spout as frequently as required. The able it to be carried out more economically. expense of shipping the matte to converting Such mattes which are strongly impregnated plants and the additional expense of remelt- 60 with sulfur are now usually shipped from the ing it for desulfurizing are saved. Great smelters to otherpoints where they are treated economy therefore results from this method in expensive converters built on a large scale of treatment, which is a point of extreme imfor desulfurization. portance in the treatment of ores. The sav- By my invention the matte is desulfurized ing of time by means of the continuous treat- 65 at the smelter and by simple and inexpensive ment is also apparent and has an important apparatus. bearing upon the commercial economy of the In the drawings, Figurel is an elevation of system employed. The coil heats the blast, part of a smelting-furnace with the desulfurand in the event that the tip of the blast-jet izing apparatus in position. Fig. 2 is a secshould come in contact with the metal at the 70 tion of the portable pot, showing the arrangebottom of the pot the hot blast would not chill ment of the air-inlet pipe relatively thereto. or agitate the bullion like the cold one.

A represents a smelting-furnace of a well- Having thus fully described my invention, known construction, and B is the outlet for what I claim as new, and desire to secure by the fused ore. The fused ore falls into the Letters Patent, is- 75 settler C, having at one side a slag-spout a In combination with a pot for receiving and opposite a spout b for tapping the molten molten metal, a flexible hose for conveying metal. air, in combination with a rigid extension D is a pot mounted upon carrying-wheels thereof having a coil, and adapted to be inand formed of metal with a refractory linserted into said pot and the metal contained 80 in g d. therein, said coil being arranged over the E represents a pipe or hose, which is flexipot. ble and extends to any suitable apparatus for In testimony whereof I have affixed my sigsupplying air under pressure. To the end of nature, in presence of two witnesses, this 4th the flexible hose is connected a metallic secday of April, 1900.

tion E, formed with a coil F. and terminating I in a straight pipe E, which is inclosed in fire GEORGE CARSON clay or other refractory substance, as shown Witnesses:

at F. O. I. Moonas,

5 The pot D is Wheeled under the spout b and THos. J. LOFTUS. 

